I am trying to connect a USB relay to actuator, so when I press button 1 , motor goes up, when i press button 2, polarity is switched and motor goes down.
I am trying to achieve this with a DPDT relay. Someone gave me this diagram, however, when i press button 1 motor goes down, but nothing happens when I press button 2. What did I miss ?
Useful info : Actuator = Motor, connecting 2 at the same time so they both run together
USB Board = USB Relay, but has physical buttons. I have a 4 channel relay, only 2 are used. When I Press button 1 in front of channel 1, motor should go forward, when I press button 2 in front of channel 2, polarity should reverse, thus motor moving backward.